one is fair use in the academic environment. as some of you know, three of our member publishers sued georgia state university because when georgia state moved its from printed course packs as materials for higher education courses to e-reserves, they made another change. they stopped paying a penny for anything put up on e-reserves no matter how, how long it was. and since 2006 not a penny has been paid. and because georgia state was, in the view of publishers, an outlier in that respect because we have understood and we think many people have understood that copyright is agnostic or same rules would apply whether we're talking print or digital, that's what led to this particular litigation. and i would say that there this -- we know there's all this vagueness and difficult any the deciding what is fair use. and you can run through four factors, but the bottom line, this is hard to figure out in many cases. but some cases are clearer than others. in the cases where large amounts of material are being used semester after semeste